Seasons & episodes

Arun and Millie come across a younger couple being attacked by a gang whilst they are out on patrol. Arun is determined to catch the gang members but ends up walking into a trap.

Whilst investigating the disappearance of a school girl Leon Taylor is forced to face up to his past.

Nate and Mel attend a stabbing on a bus and are shocked by what they see. A passenger called Holly tries to help the victim and Nate learns that she is Terry Perkin's daughter. Terry isn't happy when Nate starts to get on with his daughter. When the stabbed person dies the case turns into a murder investigation.

Nate and Tony are shocked when they see a woman being thrown out of a car along with 6 bags of cocaine. The girl tells them she has been purchasing drugs from the owner of a cab firm and that she was beaten up and thrown out if the car because she couldn't pay. When Terry works undercover at the cab firm he finds himself delivering a letter bomb.

Whilst Terry Perkins is working undercover as a taxis driver he is shocked when an armed passenger kidnaps a German girl and gets into the back of his car. When the team at Sun Hill find out what is going on they learn that they will have to work with their German counterparts.

Terry Perkins travels to Germany still working under cover. Viktor believes that there is a traitor who has been telling the police how to get Charlotte back. Terry remains silent but is shocked when Viktor kills one of his men. Terry hopes that the team at Sun Hill will find out where he and Charlotte are and rescue them.

Layla Dwyer is the victim of a hit and run driver and Nate tries to calm her brother, Noel. When the driver of the car is caught and questioned it is revelaed that Noel has been selling stolen cars to help his father get by. The investigation opens the flood gates to a whole bigger crime going on.

Masters is on scene when a pub landlord discovers the body of a prostitute, Kelly Porterfield. Her ex-boyfriend Andy Donnelly is a suspect for Kelly's fatal overdose. His girlfriend, Jen Kilshaw, is obviously underage, so Masters focuses on getting her away from Andy. Masters promises Kelly's mum that she will bring down who is responsible. Walker, Heaton and Masters look at two overdoses, including Kelly's, and a chain of locations where the girls came from and ended up, and fear that a sex trade operation is spreading across the UK, and Andy appears to not be the main suspect in Kelly's murder or the smuggling operation.

Masters continues her investigation into a people smuggling operation and the murder of Kelly Porterfield. Jake Clegg is the prime suspect in both, and appears to be working with Scotsman Logan Hunter, working in Glasgow. Masters accuses Clegg of murder, and he makes a formal complaint, for which she is reprimanded. Jen goes missing from her residential unit, and Masters fears she is heading for a swap with Hunter. Donnelly is assaulted by Clegg, and his car, fitted with a tracker, is abandoned. Can Masters get to Jen on time?

When several houses are burgled, it appears that a criminal family working out of a grotto are getting people to give their address, so they can be burgled whilst shopping. Santa, Peter Garrett, is prime suspect, and has previous form for burglary, and his daughter Lisa is caught red handed when Turner uses his flat for a sting. Lisa says she did it to pay off some debt her father had with loan shark David Crossley, before he went to prison. Crossley is caught red-handed by Moss and Turner with a fake passport, and agrees to set up 'Robert', who is fleeing the country, to get time off his sentence. Moss tells Turner to pull the op when she identifies the target, drug dealer Robert Towler, who she was undercover with at S010 in 2005.

The evidence against Stevie begins to grow. Neil and Jack find themselves with some difficult questions to ask. Stuart even begins to wonder of Stevie has given up on career to follow her heart.

When Stevie finds out that the drug deal was a set up she goes on the run with Rob. The gang after them seem to know their every move though. Rutherford seems to know more about what is going on then he is saying.

Mel's brother and his girlfriend come to stay for the New Year. She thinks that they are going to see the new year in Trafalgar Square as she heads off to work. When the team are called out to an incident at a club she finds out they changed their plans.

New Year's Eve. Ryder’s first New Year's shift starts late when she has to help her brother Jordan, visiting from Leeds. Attending a stabbing at a nightclub, Jordan is found covered in blood, and his girlfriend Kelly is found having been attacked in the bathroom. The victim goes into cardiac arrest at midnight, but survives, and Valentine grows close to the mother. Ryder fears Jordan is protecting Kelly, as she had his knife, but they are both ruled out, leaving CID scratching their heads looking for suspects.

After having been seen arguing with her boyfriend in an alleyway a young woman is found badly beaten up. When the team look into the case they find her personal life very complex and it complicates the investigation.